It depends. Interaction plays a constructive role in the SLA. Long(1985) suggests that "negotiation" is indirectly connected with acquisition since linguistic/ conversational adjustments promote the comprehension of input and comprehensible input promotes acquisition. In the process of getting meaning across, one of the interlocutors makes due adjustments by means of simplification and paraphrase whenever there is difficulty of understanding or misunderstanding occurs. These adjustments make input more comprehensible. In social science, a social interaction is any relationship between two or more individuals. According to Piotr Sztompka, forms of relation and interaction in sociology and anthropology may be described as follows: first and most basic are animal-like behaviors, i.e. various physical movements of the body. Then there are actions—movements with a meaning and purpose. Then there are social behaviors, or social actions, which address (directly or indirectly) other people, which solicit a response from another agent. Next are social contacts, a pair of social actions, which form the beginning of social interactions. Social interactions in turn form the basis of social relations. Symbols define social relationships. Without symbols, our social life would be no more sophisticated than that of animals. For example, without symbols we would have no aunts or uncles, employers or teachers or even brothers and sisters.
Human beings are innately social and are shaped by their experiences with others. There are multiple perspectives to understand this inherent motivation to interact with others.
(1) Need to belong
According to Maslow‘s hierarchy of needs, humans need to feel love (sexual/nonsexual) and acceptance from social groups (family, peer groups). In fact, the need to belong is so innately ingrained that it may be strong enough to overcome physiological and safety needs, such as children‘s attachment to abusive parents or staying in abusive romantic relationships. Such examples illustrate the extent to which the psychobiological drive to belong is entrenched.
(2) Social exchange
This perspective suggests that individuals engage in relations that are rewarding in both tangible and intangible ways. The concept fits into a larger theory of social exchange. This theory is based on the idea that relationships develop as a result of cost-benefit analysis. Individuals seek out rewards in interactions with others and are willing to pay a cost for said rewards. In the best-case scenario, rewards will exceed costs,producing a net gain. This can lead to "shopping around" or constantly comparing alternatives to maximize the benefits or rewards while minimizing costs.
(3) Relational self
Relationships are also important for their ability to help individuals develop a sense of self. The relational self is the part of an individual's self-concept that consists of the feelings and beliefs that one has regarding oneself that develops based on interactions with others. In other words, one‘s emotions and behaviors are shaped by prior relationships. Thus, relational self theory posits that prior and existing relationships influence one‘s emotions and behaviors in interactions with new individuals, particularly those individuals that remind him or her of others in his or her life. Studies have shown that exposure to someone who resembles a significant other activates specific self-beliefs, changing how one thinks about oneself in the moment more so than exposure to someone who does not resemble one‘s significant other.